The hex color #494b6c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#B6B493. The grayscale version is
#555555. A 20% lighter version of the original color is
#7C7E9F, and Hex
#161839 is the 20% darker color. If the color is saturated by 10%, you get
#484A6E. If the color is desaturated by 10%, the color
#4A4C6A is obtained.